Bcm - Ignition Mux Switch Input Short - Dodge ZB 2005 Service Manual

IGNITION, POWER, ACCESSORY
Symptom:

BCM - IGNITION MUX SWITCH INPUT SHORT

When Monitored and Set Condition:
BCM - IGNITION MUX SWITCH INPUT SHORT
When Monitored:
Set Condition: When the BCM detects the ignition switch MUX circuit voltage is below
0.25 volts for at least 2 seconds.
IGNITION SWITCH
IGNITION SWITCH SENSE CIRCUIT SHORT TO GROUND
BODY CONTROL MODULE
TEST
1 Turn the ignition off.
Disconnect the Ignition Switch harness connector.
With the DRBIII in Sensors, read the IGNITION SW voltage.
Does the DRBIII display IGNITION SW 0.0 volts?
Yes → Go To 2
→ Replace the Ignition Switch in accordance with the Service
No
2 Turn the ignition off.
Disconnect the Ignition Switch harness connector.
Disconnect the BCM C4 harness connector.
Measure the resistance between ground and the Ignition Switch Sense circuit.
Is the resistance below 10k ohms?
Yes → Repair the Ignition Switch Sense circuit for a short to ground.
→ Replace and program the Body Control Module in accordance
No
POSSIBLE CAUSES
ACTION
Information.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
with the Service Information.
Perform BODY VERIFICATION TEST - VER 1.
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APPLICABILITY
All
All